added books

1 files changed, 173 insertions, 40 deletions

diff --git a/Modern_Physics/Chapter9.ipynb b/Modern_Physics/Chapter9.ipynb
index 52c8dc08..34acce85 100755
--- a/Modern_Physics/Chapter9.ipynb
+++ b/Modern_Physics/Chapter9.ipynb
@@ -1,7 +1,6 @@
 {
  "metadata": {
-  "name": "",
-  "signature": "sha256:a22a4cd44988289c63c9da64c71766c244fd20324a2c5a80b53d48938212c4cc"
+  "name": "Chapter9"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -13,7 +12,7 @@
      "level": 1,
      "metadata": {},
      "source": [
-      "Chapter 9: Atomic Structure"
+      "Chapter 9:Molecular Structure"
      ]
     },
     {
@@ -21,30 +20,71 @@
      "level": 2,
      "metadata": {},
      "source": [
-      "Example 9.1, page no. 300"
+      "Example 9.1 Page 270"
      ]
     },
     {
      "cell_type": "code",
      "collapsed": false,
      "input": [
+      "#initiation of variable\n",
+      "E=-2.7;\n",
+      "K=9.0*(10**9)*((1.6*(10**-19))**2)/(0.106*10**-9);# taking all the values in meters. 1/(4*pi*e0)= 9*10^9 F/m\n",
       "\n",
+      "#calculation\n",
+      "q=((K-E*10**-9)/(4*K))*10**-9;                #balancing by multiplying 10^-9 on numerator. to eV.vm terms\n",
       "\n",
-      "#Variable declaration\n",
+      "#result\n",
+      "print\"Charge on the sphere required is\",round(q,4),\" times the charge of electron.\";"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Charge on the sphere required is 0.3105  times the charge of electron.\n"
+       ]
+      }
+     ],
+     "prompt_number": 3
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 9.2 Page 273"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#initiation of variable\n",
+      "K=1.44; Req=0.236; # K=e^2/(4*pi*e0)=1.44 eV.nm\n",
+      "\n",
+      "#calculation\n",
+      "Uc=-K/(Req);        #coulomb energy\n",
       "\n",
-      "Ub = 9.27 * 10 ** -24       #(J/T)\n",
-      "B = 1.00                    #magnetic field strength (T)\n",
-      "h = 6.58 * 10 ** -16        #Planck's constant (eV.s)\n",
-      "e = 1.6 * 10 ** -19         #electron charge (C)\n",
+      "#result\n",
+      "print\"The coulomb energy at an equilibrium separation distance in eV is\",round(Uc,3);\n",
       "\n",
-      "#Calculation\n",
+      "E=-4.26; delE=1.53;    #various standards values of NaCl\n",
+      "Ur=E-Uc-delE; \n",
       "\n",
-      "hwl = Ub * B / e\n",
-      "wl = hwl / h\n",
+      "#result\n",
+      "print\"The pauli''s repulsion energy in eV is\",round(Ur,3);\n",
       "\n",
-      "#results\n",
+      "#partb\n",
+      "Req=0.1;         #pauli repulsion energy\n",
+      "Uc=-K/(Req);\n",
+      "E=4; delE=1.53;\n",
+      "Ur=E-Uc-delE;\n",
       "\n",
-      "print \"The magnetic energy is\",round(hwl/10**-5,2),\"x 10^-5 eV and the Larmor frequency is\",round(wl/10**10,2),\"x 10^10 rad/s.\"\n"
+      "#result\n",
+      "print\"The pauli''s repulsion energy in eV is\",round(Ur,3);\n"
      ],
      "language": "python",
      "metadata": {},
@@ -53,38 +93,121 @@
        "output_type": "stream",
        "stream": "stdout",
        "text": [
-        "The magnetic energy is 5.79 x 10^-5 eV and the Larmor frequency is 8.81 x 10^10 rad/s.\n"
+        "The coulomb energy at an equilirium separation distance in eV is -6.102\n",
+        "The pauli''s repulsion energy in eV is 0.312\n",
+        "The pauli''s repulsion energy in eV is 16.87\n"
        ]
       }
      ],
-     "prompt_number": 2
+     "prompt_number": 4
     },
     {
      "cell_type": "heading",
      "level": 2,
      "metadata": {},
      "source": [
-      "Example 9.4, page no. 311"
+      "Example 9.3 Page 276"
      ]
     },
     {
      "cell_type": "code",
      "collapsed": false,
      "input": [
+      "#initiation of variable\n",
+      "from math import pi, sqrt\n",
+      "delE=0.50; delR=0.017*10**-9;      #delE= E-Emin; delR=R-Rmin;\n",
+      "k=2*(delE)/(delR**2);c=3*10**8;     #force constant\n",
+      "m=(1.008)*(931.5*10**6)*0.5;       #mass of molecular hydrogen\n",
+      "v= sqrt(k*c**2/m)/(2*pi);          #vibrational frequency\n",
+      "h=4.14*(10**-15);\n",
       "\n",
-      "#Variable declaration\n",
+      "#calculation\n",
+      "E=h*v;\n",
       "\n",
-      "l2 = 589.592            #sodium doublet wavelength (nm)\n",
-      "l1 = 588.995            #sodium doublet wavelength (nm)\n",
-      "hc = 1240               #planck's constant X speed of light (eV.nm)\n",
-      "\n",
-      "#Calculation\n",
+      "#result\n",
+      "print\"The value of corresponding photon energy in eV is\",round(E,3);\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The value of corresponding photon energy in eV is 0.537\n"
+       ]
+      }
+     ],
+     "prompt_number": 6
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 9.4 Page 280"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#initiation of variable\n",
+      "from math import pi, sqrt\n",
+      "hc=1240.0;        #in eV.nm\n",
+      "m=0.5*1.008*931.5*10**6;              #mass of hydrogen atom\n",
+      "Req=0.074;                          #equivalent radius\n",
       "\n",
-      "dE = hc * (l2-l1)/(l2*l1)\n",
+      "#calculation\n",
+      "a=((hc)**2)/(4*(pi**2)*m*(Req**2));  #reduced mass of hydrogen atom\n",
+      "for L in range(1,4):\n",
+      "        delE= L*a; \n",
+      "        print\"The value of energy in eV is\",round(delE,4);                  \n",
+      "        w=(hc)/delE;\n",
+      "        print\"The respective wavelength in um is\",round(w*10**-3,3);  \n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The value of energy in eV is 0.0151\n",
+        "The respective wavelength in um is 81.849\n",
+        "The value of energy in eV is 0.0303\n",
+        "The respective wavelength in um is 40.925\n",
+        "The value of energy in eV is 0.0454\n",
+        "The respective wavelength in um is 27.283\n"
+       ]
+      }
+     ],
+     "prompt_number": 9
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 9.5 Page 283"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#initiation of variable\n",
+      "from math import pi\n",
+      "delv=6.2*(10**11);     #change in frequency\n",
+      "h=1.05*(10**-34);        #value of h in J.sec\n",
       "\n",
-      "#Results\n",
+      "#calculation\n",
+      "I= h/(2*pi*delv);      #rotational inertia\n",
+      "I1=I/(1.684604*10**-45); #to change units\n",
       "\n",
-      "print \"dE =\",round(dE/10**-3,2),\"X 10^-3 eV represents the spin orbit splitting of the initial levels.\""
+      "#result\n",
+      "print\"The value of rotational inertia in kg m2 is %.1e\" %I;\n",
+      "print\"which in terms of amu in u.nm2 is\",round(I1,3);"
      ],
      "language": "python",
      "metadata": {},
@@ -93,40 +216,48 @@
        "output_type": "stream",
        "stream": "stdout",
        "text": [
-        "dE = 2.13 X 10^-3 eV represents the spin orbit splitting of the initial levels.\n"
+        "The value of rotational inertia in kg m2 is 2.69536597172e-47\n",
+        "which in terms of amu in u.nm2 is 0.016\n"
        ]
       }
      ],
-     "prompt_number": 6
+     "prompt_number": 16
     },
     {
      "cell_type": "heading",
      "level": 2,
      "metadata": {},
      "source": [
-      "Example 9.6, page no. 317"
+      "Example 9.6 Page 286"
      ]
     },
     {
      "cell_type": "code",
      "collapsed": false,
      "input": [
+      "#initiation of variable\n",
+      "from math import pi\n",
+      "delE=0.358;hc=4.14*10**-15;          #hc in eV.nm and delE=1.44eV(given values)\n",
       "\n",
-      "import math\n",
-      "\n",
-      "#Variable declaration\n",
+      "#calculation\n",
+      "f=(delE)/hc;                        #frequency \n",
       "\n",
-      "E = -5.14           #Energy of the 3s electron in sodium (eV)\n",
-      "Eh = 13.6           #energy of the 3s electron in hydrogen (eV)\n",
+      "#result\n",
+      "print\"The frequency of the radiation is \",f;\n",
       "\n",
       "\n",
-      "#Calculation\n",
+      "m=0.98;                            #mass in terms of u\n",
+      "k=4*pi**2*m*f**2;                   #value of k in eV/m^2\n",
       "\n",
-      "Zeff = 3 * math.sqrt(-E/Eh)\n",
+      "#result\n",
+      "print\"The force constant is\",k; \n",
       "\n",
-      "#Results\n",
+      "#partb\n",
+      "hc=1240.0; m=0.98*1.008*931.5*10**6; Req=0.127;      #various constants in terms of  \n",
+      "s=((hc)**2)/(4*(pi**2)*m*(Req**2));                # expected spacing \n",
       "\n",
-      "print \"Zeff for the 3s electron in sodium is\",round(Zeff,2)"
+      "#result\n",
+      "print\"The spacing was found out to be\",round(s,3),\"which is very close to the graphical value of 0.0026 eV.\""
      ],
      "language": "python",
      "metadata": {},
@@ -135,11 +266,13 @@
        "output_type": "stream",
        "stream": "stdout",
        "text": [
-        "Zeff for the 3s electron in sodium is 1.84\n"
+        "The frequency of the radiation is  8.64734299517e+13\n",
+        "The force constant is 2.89301831756e+29\n",
+        "The spacing was found out to be 0.003 which is very close to the graphical value of 0.0026 eV.\n"
        ]
       }
      ],
-     "prompt_number": 10
+     "prompt_number": 19
     }
    ],
    "metadata": {}